The Leica Wide Angle 28mm f/2 Elmarit-M is our fastest wide-angle Leica lens. Remarkably, the lens is almost the same size and weight of its slower f/2.8 sibling, despite being one-stop faster with a maximum aperture of f/2. This lens is glorious at any aperture, and is practically distortion-free in the whole focus range from 2.3" (0.7 m) to infinity and only extends slightly into the viewfinder field of M cameras.

This lens has been updated with the "6-bit" coding, which allows the digital M camera to read this information optically and to identify which lens is being used. The camera can then (optionally) apply a "final stage" software based vignetting correction (for RAW images the lens used is simply recorded, no change is made).